Black minimalistic theme for Pale Moon, based on Dark Moon.
No colors, no round corners, almost no light. Extremely compact and easy on eyes. Very useful with linear gamma.
Simply download the contents of the "src" folder and pack the contents into a .zip file. Then, rename the file to .xpi and drag into the browser.
You can grab the latest release from the Releases section of this repository, or the Pale Moon Add-Ons Site.